Finding the Fourth Proportional to 56,914.29, 85,380.69 and 21,378.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,914.29 : 85,380.69 = 21,378.38 : x
2. Step 2: Convert to fraction form
   56,914.29/85,380.69 = 21,378.38/x
3. Step 3: Cross multiply
   56,914.29x = 85,380.69 × 21,378.38
4. Step 4: Simplify right side
   56,914.29x = 1,825,300,488.75
5. Step 5: Solve for x
   x = 1,825,300,488.75/56,914.29
6. Step 6: Final answer
   x = 32,071.04